J. Phys. II France
Volume 2, Numéro 8, August 1992
Page(s) 1489 - 1493
DOI: 10.1051/jp2:1992215
J. Phys. II France 2 (1992) 1489-1493

Numerical simulation of the double layer Hubbard model

I. Morgenstern, Th. Husslein, J.M. Singer and H.-G. Matuttis

Department of Physics, Universtiy of Regensburg, D-8400 Regensburg, Germany and HLRZ, c/o KFA Jülich, Postfach 1913, D-5170 Jülich, Germany

(Received 5 June 1992, accepted 22 June 1992)

We have carried out Quantum Monte Carlo studies to investigate the double layer Hubbard model using the groundstate projector formalism. Evidence for off diagonal long range order in the nodeless d-wave pairing channel is provided. It is emphasized that the Projector Quantum Monte Carlo method has the potential to detect superconducting mechanisms in strongly correlated electron systems, which are not treatable by standard analytic methods. The Monte Carlo technique provides useful information about systems much larger than those accessible for exact diagonalization methods.


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